We discuss the effects of inflation and time discounting on an EOQ model for deteriorating items under stock-dependent demand and time-dependent partial backlogging. The inventory model is studied under the replenishment policy starting with no shortages. We then use MATLAB to find the optimal replenishment policies. The objective of this model is to maximize the total profit (TP) which inclu...

This study considers the production and inventory management problem of a two-stage semiprocess production system. In case both production stages are physically connected it is obvious that materials are forced to flow. The economic lotsize depends on the holding cost of the endproduct and the combined change-over cost of both production stages. On the other hand this 'flow shop' is forced to p...

Traditionally, inventory management experts have calculated a fixed economic order quantity (EOQ) that minimizes the cost of ordering and keeping stock. Some organizations use fixed maximum and minimum order quantity (MOQ) which ranges around EOQ for stocking various parts. These quantities are ordered at a specific stock level called the reorder point. The reorder point is calculated as the st...

A fuzzy NLP EOQ model is developed with demand dependent unit cost of production and dynamic setup cost under limited capital investment and limited storage capacity. Here fuzziness is introduced in objective function, capital system and storage area. It is solved by fuzzy non-linear technique for linear membership functions. This paper allows the modification of the Single item EOQ model in pr...

In a previous International Journal of Production Economics article, a comparative model was presented for inventory costs of purchasing under economic order quantity (EOQ) with quantity discounts and a just-in-time (JIT) order purchasing system. This paper expands the comparative model to include a relevant cost component not considered in the previous article. The results of the revised model...

Penelitian ini bertujuan untuk menentukan banyaknya jumlah pembelian bahan baku tepung sagu yang optimal pada setiap kali pemesanan, kapan waktu tepat melakukan pemesanan kembali (reorder point) sagu, dan berapa total biaya persediaan (total inventory cost) pengadaan di Perusahaan Sohun Cap Mawar dengan menggunakan metode Economic Order Quantity (EOQ). Hasil analisis diperoleh menunjukkan bahwa...